CN103201056B

CN103201056B - For machining, especially for the equipment cutting tubular or circular cross-section body

Info

Publication number: CN103201056B
Application number: CN201180054457.5A
Authority: CN
Inventors: S·马科宁; M·普里哈
Original assignee: Exact Tools Oy
Current assignee: Exact Tools Oy
Priority date: 2010-10-05
Filing date: 2011-10-05
Publication date: 2016-06-08
Anticipated expiration: 2031-10-05
Also published as: BR112013008223A2; JP2016172319A; US9868164B2; JP2013542082A; EP2624980A1; FI20106025A0; AU2011311459B2; KR20130133772A; FI123958B; CN103201056A; EP2624980A4; RU2013119156A; FI20106025A; AU2011311459A1; CA2813677A1; WO2012045912A1; US20130269500A1

Abstract

A kind of equipment (100) of tubular for machining or round bar type part, wherein, this equipment includes frame element (102), machining unit (104) and thread spindle (110), this thread spindle (110) is assemblied on frame element in the way of rotatable and axial restraint, and is provided with the Part I (110a) of right-hand thread and is provided with the Part II (110b) of Left-hand threads. Part I is provided with at least one the first supporting member (106a), Part II is provided with at least one the second supporting member (106b), mutual distance between supporting member can respond the rotation of thread spindle and be adjusted, so, described supporting member (such as wheel) is used for contacting workpiece, and supports when machined part and guide this equipment (100). At least one in this supporting member (such as wheel) (106a, 106b) rotates relative to its axis along moving of surface of the work for responding this equipment.

Description

For machining, especially for the equipment cutting tubular or circular cross-section body

Technical field

The present invention relates to a kind of tubular for machining (especially for cutting, but be also used for delineation and/or cut sth. askew) or round bar type part equipment.

Background technology

By the known multiple types of tools of prior art for machining (such as cutting or milling) tubular or round bar type part, or this part of cutting sth. askew in its end. A kind of exemplary tools of prior art is angle grinder, including the rotation dish for cutting parts. Rotation dish can also be used to cut sth. askew the end of part.

But, the problem of these instruments is such as how to cross whole pipe to produce rectilinear cutting result, namely when cutting tool advances along tube-surface, how to make end point accurately consistent with starting point, and operator need not carry out any corrective action, for instance very close to (therefore generation bending in line of cut) when terminating. Another problem is that of existing known devices does not have supporting member, so that cutting and inconvenience especially of cutting sth. askew. Generally, cut point or the result unsmooth of cutting sth. askew, therefore cause such as in guard system owing to its sawtooth (raggedness) or sharp cutting edge damage conduit seals in the process of pipe laying and produce possible leak point.

In order to solve some the problems referred to above, prior art also discloses multiple device. Such as, the patent documentation FI118076B of the applicant oneself discloses a kind of equipment, and wherein, this equipment includes clamping device, for fastening rotatably on the workpiece around workpiece. Clamping device is particularly including frame element and the first and second arms of stretching out from this frame element, described arm is hinged on the frame element of clamping device at one end, and the free end of each arm is equipped with bearing shaft, this bearing shaft is provided with at least one bearing wheel, for contacting with the surface of workpiece. Clamping device can by described device around the fastening parts of circular cross-section.

Described equipment performs well in little and even medium sized pipe size, particularly has the bigger cutting force of formation, and therefore clamping device keeps machining unit laterally direction static such that it is able to such as produce linear cutting result.But will encounter problems for bigger pipe size, because in the process of machining large-scale part, around part extend arm must make their pin joint (arm is attached on the frame element of clamping device by this pin joint) be spaced from each other at least with the distance of the diameter matches of part. This inevitable requirement is when the part of machining such as 1000mm diameter; the framework of clamping device must have the length just over 1000mm, and therefore this equipment becomes quite huge and heavy, therefore, it is difficult to operation; and generally also dangerous, because this equipment is no longer suitable for stable manual operation. It practice, had alternative in the prior art to use the equipment part for different-diameter of sizes, this is certainly expensive, because it needs at least two or three kinds of various sizes of equipment parts.

On the other hand, when machining thin-walled parts (such as thin-walled helically welded tube), the clamping device around fastening parts is likely to compress this part, thus changing its shape, therefore, producing linear cutting result and becoming highly difficult, or even not possible.

And, in the prior art devices, machining or depth of cut are regulated extremely the best is the operation of difficulty.

Summary of the invention

It is an object of the invention to eliminate or at least reduce the defect relevant to prior art. According to an embodiment, it is an object of the present invention to provide that such a is tubular for machining or the equipment of round bar type part, wherein, identical device should the tubular and round bar type part of machining (particularly cut and/or cut sth. askew) all diameter dimensions. Another object is that this equipment should be easy to machined groove on the surface of part, for instance for O-ring packing or such as outside clamping element. A further object is to provide a kind of compact size and easy-to-operate handheld tool. Also an additional purpose is to provide the function device of a kind of simple in construction, it can machining such as helically welded tube, other thin metallic tubd and plastic tube, and be not only limited to this.

Some purposes of the present invention are realized by the equipment proposed in claim 1.

The feature of the equipment of the present invention proposes in the claim 1 relating to equipment.

In the present invention, according to first embodiment, include frame element and the device for being attached on frame element by machining unit for machining (such as cutting) tubular or round bar type part or part end of cutting sth. askew equipment. Machining unit can such as be attached on the frame element of this equipment by the known attachment arrangement of prior art, such as by bolt or slide rail, preferably, the position of machining unit can be adjusted relative to the longitudinal axis of frame element, is used for producing linear cutting result. This equipment is also provided with regulating element, for instance hinge, slide rail or corresponding regulating element similarly, for making the tool component of described machining unit relative to framework toward and away from workpiece motion s. Here, for instance in the process of cutting parts, machining unit or the tool component (such as cast-cutting saw, dish and/or dish of cutting sth. askew) that rotates at least through this machining unit are towards workpiece motion s.

According to the present invention, frame element is provided with thread spindle in the way of rotatable and axial restraint, and this thread spindle has the right-hand thread in its Part I and the Left-hand threads in its Part II. Additionally, described Part I is provided with at least one the first supporting member, described Part II is provided with at least one the second supporting member, and the mutual distance between supporting member can be responded the rotation of thread spindle be adjusted by the action regulating device that is connected with thread spindle. It should be known that the supporting member that the first and second parts with thread spindle are associated be preferably used to response thread spindle rotation run simultaneously. Mutual distance between supporting member is adjusted needed for being preferably the diameter according to round bar type of workpiece, so, this equipment can rotate along the outer surface of part or periphery and line of cut in the same direction when part carries out machining, it is also preferable that the frame element of this equipment is not in contact with workpiece, and this equipment does not slide transverse to the direction cutting result.

Additionally, mutual distance between supporting member is for regulating the distance of tool component, it is thus possible to such adjustable range, namely at its minimum point place, tool component carries out lucky best contacting with the object wanting machining, for instance when described part will cut this part time cut, or also may select, simply this surface appropriate depth of milling, is not penetrate groove, for instance for O V-shaped ring.The adjustment of depth of cut also allows for use small diameter tools in machining unit. One advantage of small diameter tools is to be not easy such as to respond the cutting force deformation of formation.

According to a preferred embodiment of the present invention, in machining operation, supporting member is used for contacting workpiece, and directly supports when part is processed and guide this equipment. At least one supporting member is designed to rotate relative to its axis while making this equipment move along surface of the work. Being more preferably, this supporting member is wheel. According to an embodiment, this is taken turns and can be provided with ratchet mechanism, therefore, wheel is most preferably for rotating along machine direction, but clamp along other direction, therefore this mechanism guides the operator of this equipment that tool component is worked along correct direction, for providing best cutting result or result of cutting sth. askew.

According to an embodiment, take turns or one group of wheel for can be included at least one relative to the supporting member that its axis rotates, or relative to the roller that its rotation axis extends, it is most preferred that it is flexible roller, for instance rubber rollers. And, include at least one according to an embodiment, the first supporting member being connected with described Part I and the second supporting member being connected with described Part II and take turns or one group of wheel, or relative to the roller that its rotation axis extends. According to further preferred embodiment, at least one part of thread spindle is provided with two spaced apart wheels, rotates for the axis relative to them.

According to one embodiment of present invention, the first supporting member being connected with described Part I includes at least one takes turns, and the second supporting member being connected with described Part II includes at least one takes turns. According to an embodiment, between described wheel, it is provided with roller or band, it is most preferred that be flexible roller or band, for instance rubber rollers or band, this roller or band are used for across substantially the whole distance between described wheel to contact the surface of workpiece.

According to an embodiment, at least one supporting member is sled or sliding part or is fabricated to some other supporting members that can slide along surface of the work.

Most preferably, supporting member is such structure, and when in contact with a workpiece, the frictional force of this supporting member laterally direction ratio is higher (namely such as along pipe line of cut direction) along the longitudinal direction. This such as realizes by taking turns, it is most preferred that be pass through rubber wheel.

According to one embodiment of present invention, this equipment also includes regulating element, for regulating at least one supporting member angle relative to the longitudinal axis of the machining unit being connected with described frame element. Therefore, machining unit, can be adjusted relative to the angle of the angle of the longitudinal axis of the frame element of this equipment or at least coupled tool component, for instance be used for realizing linear cutting result.

It is most preferably, machining unit is for being so attached at the frame element of equipment, namely in machining operation, the tool component of machining unit is at the supporting surface external of described frame element and absorption surface, and therefore the frame element of this equipment need not be provided with single opening for the tool component import of tool component machining workpiece (this opening will be provided for).

Machining unit can have its tool component, this tool component becomes saw, chopping disk or blade or by the form of the utensil of the part end that is used for cutting sth. askew or combinations of the above, particularly cast-cutting saw and will be used for the combination of utensil cut sth. askew, therefore, cuts and cuts sth. askew and can carry out simultaneously.It should be known that according to the present invention, by suitable adjustable distance between supporting member, depth of cut will be best with consistent on the whole periphery of part.

The invention provides the obvious advantage being better than prior art. First, the equipment of formation is less, and, an identical device can be used in particular for the pipe that machining diameter is less and very big. Part even for major diameter is also readily available linear cutting result, it addition, the factor produced by the abrasion of blade, workpiece material or equipment operator such as can be easy to compensation by regulating angle between the longitudinal axis of machining unit and the frame element of equipment. Additionally, the machining of helically welded tube can also be made directly, especially by such present device, wherein, supporting member is made up of wheel, most preferably by such equipment, wherein, three or four wheel composition supporting members, therefore, at least one is taken turns and is present on flat part, and simultaneously other wheel crosses the joint of helically welded tube. Carrying out the pipe of machining and also be able to as plastic tube, it can pass through the equipment of the present invention by using suitable tools parts carry out cutting and cutting sth. askew in single operation.

Accompanying drawing explanation

More ad hoc introduce the preferred embodiments of the present invention below with reference to the accompanying drawings, in accompanying drawing:

Fig. 1 illustrate in accordance with a preferred embodiment of the present invention, for an example apparatus of the present invention of machining;

Fig. 2 illustrate in accordance with a preferred embodiment of the present invention, an example apparatus of the present invention in working order;

Fig. 3 illustrate in accordance with a preferred embodiment of the present invention, an example apparatus of the present invention viewed from above;

Fig. 4 illustrate in accordance with a preferred embodiment of the present invention, from the following oblique example apparatus of the present invention seen; And

Fig. 5 illustrate in accordance with a preferred embodiment of the present invention, from the oblique example apparatus of the present invention (in working order) seen above.

Detailed description of the invention

Fig. 1 and 5 illustrate an example apparatus 100 in travel position, wherein, tool component 104a is covered by pivotable protective cover 104b, and Fig. 2 illustrates in running order equipment 100, wherein, pivotable protective cover 104b rotates into being exposed at least partially outside protective cover 104 so that tool component 104a. Equipment 100 includes frame element 102 and the machining unit 104 for making tool component 104a rotate. It addition, example apparatus includes at least one first supporting member 106a and at least one second supporting member 106b, for this equipment 100 being bearing in this workpiece 108 while workpiece is processed. This equipment is also provided with regulating element, for instance hinge or slide rail, is used for so that tool component 104a moves toward and away from workpiece 108 relative to frame element 102. It is thus possible, for instance in the process of cutting and/or part 108 of cutting sth. askew, tool component 104a moves towards workpiece 108, as shown in Figure 2. Tool component 104a has such track, and this track naturally can regulate by means of existing known device and/or limit.

The lateral position (��) of machining unit 104 can be adjusted relative to the longitudinal axis 102a of the frame element 102 of equipment 100, such as producing linear cutting result 108a when this equipment is along the peripolesis of pipe-shaped parts 108, as shown in Figure 3. This equipment can include scale (��), for showing the size of lateral angles. This equipment can also include indicator elment 113, for instance indicator and scale, is used for the diameter of distance and the supporting member being disclosed between supporting member, is best for regulating described in the diameter of supporting member, for instance when cutting or delineation.Additionally, especially as seen from Figure 3, machining unit 104 is for being attached at the frame element 102 of this equipment, so, in process operation process, the tool component 104a of machining unit is at the external contact workpiece 108 on the supporting surface of described frame element, from without providing the single opening for tool component the frame element 102 of this equipment.

Fig. 4 illustrates the oblique example apparatus 100 seen and its frame element 102 from bottom, wherein, frame element 102 is provided with thread spindle (leading screw) 110 with rotatable and axial restraint form, the Part I 110a of this thread spindle 110 has the right hand (rotation) screw thread, and its Part II 110b has left hand (rotation) screw thread. According to a preferred embodiment of the present invention, Part I 110a is loaded with two wheel shape supporting member 106a, and Part II is loaded with two wheel shape supporting member 106b. Supporting member 106a, 106b can fit through the suitable intermedium (such as by intermedium shown in Fig. 4, carrier types attachment element) being attached element 112a, 112b and be connected with threaded shank portion 110a, 110b, wherein, carrier types attachment element is preferably provided with threaded portion, and this threaded portion mates with the screw thread of thread spindle. Therefore, it is possible to the mutual distance 107 that the intermedium of the regulating element 110c that response is by being connected with thread spindle makes thread spindle 110 rotate and regulates between supporting member 106a, 106b.

According to the present invention one particularly preferably embodiment, the frame element 102 of this equipment 100 includes two independent attachment element 112a, 112b, the two attachment element 112a, 112b are assemblied on threaded shank portion 110a, 110b, and respectively attachment element 112a, 112b includes two wheel 106a, 106b(supporting members separately), the described angle taken turns preferably regulates or may be adjusted to so so that frame element 102 and (therefore) machining unit and tool component 104a move along a straight line. This such as can make the end point of line of cut overlap with starting point when this equipment is along the peripolesis of tubular or round bar type of workpiece. According to this embodiment, the rotation of thread spindle 110 can be responded carrier types attachment distance between element 112a, 112b and (therefore) in wheel distance 107 between 106a, 106b and be adjusted.

Simply describe several embodiments of the present invention program above. Certainly can change in the protection domain determined by claim according to principles of the invention, for instance about details and the field of use of specific embodiments. Particularly, the number of supporting member (such as wheel) can be more more or less than shown 4, although the whole peripheral length that number 4 is particularly conducive to surround workpiece sets up linear processing line.

Claims

1. one kind for machining is tubular or the equipment (100) of round bar type part (108), wherein, this equipment includes frame element (102) and the device for being attached on frame element by machining unit, wherein, this equipment is also provided with the regulating element for making the tool component of described machining unit move towards or away from part (108) relative to frame element (102), frame element (102) is provided with thread spindle (110) in the way of rotatable and axial restraint, the Part I (110a) of this thread spindle has right-hand thread, the Part II (110b) of this thread spindle has Left-hand threads, it is characterized in that: described Part I (110a) is provided with at least one the first supporting member (106a), described Part II (110b) is provided with at least one the second supporting member (106b), mutual distance (107) between supporting member can be adjusted while thread spindle (110) rotate, so, described supporting member (106a, 106b) it is used for contacting described part (108), and the supporting and guide this equipment when part carries out machining, wherein, supporting member (106a, at least one in 106b) rotates relative to the axis of this supporting member along moving of piece surface for responding this equipment, described supporting member (106a, 106b) it is configured to only on one and half arcs of circular pieces.

2. equipment according to claim 1, wherein: take turns for can be included at least one relative to the described supporting member (106a, 106b) that its axis rotates.

3. equipment according to claim 2, wherein: described supporting member includes roller, described roller is the roller elongated relative to its rotation axis.

4. equipment according to claim 3, wherein: described roller is flexible roller.

5. equipment according to claim 1, wherein: the first supporting member being connected with described Part I and the second supporting member being connected with described Part II include at least one takes turns.

6. equipment according to claim 5, wherein: the first supporting member and the second supporting member being connected with described Part II that are connected with described Part I include roller, and described roller is the roller elongated relative to its rotation axis.

7. equipment according to claim 1, wherein: the first supporting member being connected with described Part I includes at least one takes turns, the second supporting member being connected with described Part II includes at least one takes turns, wherein, there is provided roller or band, this roller or band for contacting the surface of described part across substantially the whole distance between described wheel between described wheel.

8. equipment according to claim 1 and 2, wherein: this at least one described supporting member is the supporting member for sliding along piece surface.

9. equipment according to claim 1 and 2, wherein: this at least one described supporting member is sled.

10. equipment according to claim 1 and 2, wherein: this at least one described supporting member is sliding part.

11. equipment according to claim 1, wherein: this supporting member (106a, 106b) is such structure, the frictional force laterally direction ratio (102a) along the longitudinal direction when it contacts with part (108) is higher.

12. equipment according to claim 1, wherein: machining unit (104) is so assemblied on the frame element of this equipment, namely, in process operation process, the tool component (104a) of machining unit contacts with part (108) at the supporting surface external of described frame element (102).

13. equipment according to claim 1, wherein: this equipment includes regulating element, it is used for the angle regulating at least one supporting member relative to the longitudinal axis of the machining unit being connected with described frame element (102).

14. equipment according to claim 1, wherein: this equipment is handheld tool.

15. equipment according to claim 1, wherein: the tool component of machining unit is the utensil of the end for machined part of cutting sth. askew.

16. equipment according to claim 1, wherein: the tool component of machining unit is cast-cutting saw.

17. equipment according to claim 1, wherein: the tool component of machining unit is dish.

18. equipment according to claim 1, wherein: described machining is cutting, tubular or round bar type part of delineating and/or cut sth. askew.

19. equipment according to claim 1, wherein: for one group of wheel can be included relative to the described supporting member (106a, 106b) that its axis rotates.

20. equipment according to claim 1, wherein: the first supporting member being connected with described Part I and the second supporting member being connected with described Part II include one group of wheel.